19905693 ÷ 73 
The aim is to understand the frequency of 73 in 19905693.

Moving on to step 1:
73 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 73

On to step 2:
19 divided by 73 is 0 with a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 19 after subtracting 0 from 19.
Bring next digit (9) of the dividend behind the 19 and repeat the process: 199 / 73

Let's proceed to step 3:
73 goes into 199 2 times with a remainder of 53.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 146 from 199, we get 53.
Take the next digit (0) from the dividend and append it to 53, then repeat: 530 / 73

Step 4:
530 divided by 73 is 7 with a remainder of 19.
The next digit of our result is 7. 
Result so far: 27.0
If we subtract 511 from 530, we get 19.
Take the next digit (5) from the dividend and append it to 19, then repeat: 195 / 73

Advancing to step 5:
The number 73 fits into 195 2 times, leaving a remainder of 49.
The number 2 becomes the next digit in our result. 
Result so far: 272.0
The remainder is 49 after subtracting 146 from 195.
Fetch the next digit (6) from the dividend, attach it to 49 and continue: 496 / 73

Moving on to step 6:
When dividing 496 by 73, we get 6 with a remainder of 58.
Record the quotient 6 as the next digit in the result. 
Result so far: 2726.0
If we subtract 438 from 496, we get 58.
Take the next digit (9) from the dividend and append it to 58, then repeat: 589 / 73

Moving on to step 7:
73 can be fit into 589 8 times, resulting in a remainder of 5.
The next digit of our result is 8. 
Result so far: 27268.0
Deduct 584 from 589 and we're left with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 73

Advancing to step 8:
The number 73 fits into 53 0 times, leaving a remainder of 53.
The next digit of our result is 0. 
Result so far: 272680.0
Subtracting 0 from 53 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 9:
The number 73 fits into 530 7 times, leaving a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 272680.7
If we subtract 511 from 530, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 10:
When dividing 190 by 73, we get 2 with a remainder of 44.
Put 2 as the next digit of the answer. 
Result so far: 272680.72
The remainder is 44 after subtracting 146 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 11:
When dividing 440 by 73, we get 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 272680.726
Deduct 438 from 440 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 12:
The number 73 fits into 20 0 times, leaving a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 272680.726
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
73 can be fit into 200 2 times, resulting in a remainder of 54.
Put 2 as the next digit of the answer. 
Result so far: 272680.72602
If we take 146 away from 200, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 14:
73 goes into 540 7 times with a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 272680.726027
Subtracting 511 from 540 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 15:
73 goes into 290 3 times with a remainder of 71.
The next digit of our result is 3. 
Result so far: 272680.7260273
Deduct 219 from 290 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 16:
The number 73 fits into 710 9 times, leaving a remainder of 53.
Write down 9 as next digit of the result. 
Result so far: 272680.72602739
If we subtract 657 from 710, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

In conclusion, the division gives 272680.72602739 with a balance of 5.3e-08.